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Title: Numerical simulation of two-dimensional single- and multiple-material flow fields

Abstract

Over the last several years, Sandia National Laboratories has had an interest in developing capabilities to predict the flow fields around vehicles entering or exiting the water at a wide range of speeds. Such prediction schemes have numerous engineering applications in the design of weapon systems. For example, such a scheme could be used to predict the forces and moments experienced by an air-launched anti-submarine weapon on water-entry. Furthermore, a water-exit prediction capability could be used to model the complicated surface closure jet resulting from a missile being shot out of the water. The CCICE (Cell-Centered Implicit Continuous-fluid Eulerian) code developed at Los Alamos National Laboratory (LANL) was chosen to provide the fluid dynamics solver for high speed water-entry and water-exit problems. This implicit time-marching, two-dimensional, conservative, finite-volume code solves the multi-material, compressible, inviscid fluid dynamics equations. The incompressible version of the CCICE code, CCMAC (cell-Centered Marker and Cell), was chosen for low speed water- entry and water-exit problems in order to reduce the computational expense. These codes were chosen to take advantage of certain advances in numerical methods for computational fluid dynamics (CFD) that have taken place at LANL. Notable among these advances is the ability to perform implicit,more » multi-material, compressible flow simulations, with a fully cell-centered data structure. This means that a single set of control volumes are used, on which a discrete form of the conservation laws is satisfied. This is in control to the more classical staggered mesh methods, in which separate control volumes are defined for mass and momentum. 12 refs.« less

Authors:
;  [1];  [2]
  1. Sandia National Labs., Albuquerque, NM (United States)
  2. Los Alamos National Lab., NM (United States)
Publication Date:
Research Org.:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
10123941
Report Number(s):
LA-UR-92-3; CONF-920685-2; SAND-91-2788C
ON: DE92007428
DOE Contract Number:  
W-7405-ENG-36; AC04-76DP00789
Resource Type:
Conference
Resource Relation:
Conference: 27. cavitation and multiphase flow forum,Los Angeles, CA (United States),21-25 Jun 1992; Other Information: PBD: [1992]
Country of Publication:
United States
Language:
English
Subject:
45 MILITARY TECHNOLOGY, WEAPONRY, AND NATIONAL DEFENSE; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; HYDRODYNAMICS; C CODES; PENETRATORS; LIQUID FLOW; NUMERICAL SOLUTION; COMPUTERIZED SIMULATION; TWO-DIMENSIONAL CALCULATIONS; RAYLEIGH-TAYLOR INSTABILITY; REENTRY; SURFACE WATERS; MASS TRANSFER; 450000; 665000; MILITARY TECHNOLOGY, WEAPONRY, AND NATIONAL DEFENSE; PHYSICS OF CONDENSED MATTER

Citation Formats

Lopez, A R, Baty, R S, and Kashiwa, B A. Numerical simulation of two-dimensional single- and multiple-material flow fields. United States: N. p., 1992. Web.
Lopez, A R, Baty, R S, & Kashiwa, B A. Numerical simulation of two-dimensional single- and multiple-material flow fields. United States.
Lopez, A R, Baty, R S, and Kashiwa, B A. 1992. "Numerical simulation of two-dimensional single- and multiple-material flow fields". United States. https://www.osti.gov/servlets/purl/10123941.
@article{osti_10123941,
title = {Numerical simulation of two-dimensional single- and multiple-material flow fields},
author = {Lopez, A R and Baty, R S and Kashiwa, B A},
abstractNote = {Over the last several years, Sandia National Laboratories has had an interest in developing capabilities to predict the flow fields around vehicles entering or exiting the water at a wide range of speeds. Such prediction schemes have numerous engineering applications in the design of weapon systems. For example, such a scheme could be used to predict the forces and moments experienced by an air-launched anti-submarine weapon on water-entry. Furthermore, a water-exit prediction capability could be used to model the complicated surface closure jet resulting from a missile being shot out of the water. The CCICE (Cell-Centered Implicit Continuous-fluid Eulerian) code developed at Los Alamos National Laboratory (LANL) was chosen to provide the fluid dynamics solver for high speed water-entry and water-exit problems. This implicit time-marching, two-dimensional, conservative, finite-volume code solves the multi-material, compressible, inviscid fluid dynamics equations. The incompressible version of the CCICE code, CCMAC (cell-Centered Marker and Cell), was chosen for low speed water- entry and water-exit problems in order to reduce the computational expense. These codes were chosen to take advantage of certain advances in numerical methods for computational fluid dynamics (CFD) that have taken place at LANL. Notable among these advances is the ability to perform implicit, multi-material, compressible flow simulations, with a fully cell-centered data structure. This means that a single set of control volumes are used, on which a discrete form of the conservation laws is satisfied. This is in control to the more classical staggered mesh methods, in which separate control volumes are defined for mass and momentum. 12 refs.},
doi = {},
url = {https://www.osti.gov/biblio/10123941}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Sun Mar 01 00:00:00 EST 1992},
month = {Sun Mar 01 00:00:00 EST 1992}
}

Conference:
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